Summary
My research focuses on physical exchange processes occurring at the interface between the ocean and atmosphere. In particular, I have focused on understanding the occurrence, scale and severity of air-entraining breaking waves using data collected from both laboratory and field experiments. I also have a keen interest in how turbulence in the upper ocean responds to atmospheric forcing such as wind stress, buoyancy fluxes and wave breaking.
I joined the department of Civil and Environmental Engineering at Imperial College London as senior lecturer in November 2017. I have also been a Royal Society Shooter International Research Fellow at Imperial College since January 2017. Before this I worked as a postdoctoral researcher and then as an Assistant Project Scientist at the Scripps Institution of Oceanography. I completed my Ph.D. in Physical Oceanography in 2009 at the National Univeristy of Ireland, Galway.
Research Group
I am currently building my research group within the department of Civil and Environmental Engineering at Imperial College. If you are interested in pursuing a graduate or post-graduate project related to ocean-atmosphere interaction please contact me to discuss possible options.
Publications
Journals
Callaghan A, 2024, A Model for Air Entrainment Rates in Oceanic Whitecaps, Geophysical Research Letters, ISSN:0094-8276
Callaghan A, Deane G, Stokes D, 2024, A comparison of laboratory and field measurements of whitecap foam evolution from breaking waves, Journal of Geophysical Research: Oceans, Vol:129, ISSN:2169-9275
Padilla E, Cao R, Callaghan AH, 2023, Spatial Interpolation of wave fields based on limited spatial measurements, Ieee Journal of Oceanic Engineering, Vol:48, ISSN:0364-9059, Pages:1226-1235
Cao R, Padilla EM, Callaghan AH, 2023, The influence of bandwidth on the energetics ofintermediate to deep water laboratory breaking waves, Journal of Fluid Mechanics, Vol:971, ISSN:0022-1120
Goddijn-Murphy L, Woolf DK, Pereira R, et al., 2023, The links between marine plastic litter and the air-sea flux of greenhouse gases, Frontiers in Marine Science, Vol:10, ISSN:2296-7745, Pages:1-7